Hello everyone, Yesterday I received my long-anticipated Olympus 12-50, and was immediately disappointed. When zooming manually, there's a distinctly audible sound. It's quiet...but it's there. At first I thought it was a grinding noise, but, upon listening to it more closely, it actually sounds like it's gears moving against each other. It sounds like I'm moving the gears for the power zoom while manually zooming? I don't know...I've never owned a power zoom before, so I'm not sure if this is normal or not. In power zoom mode, it's perfectly silent. Is this normal? Thanks in advance!